The Attack on Nick Fury was an assassination attempt on S.H.I.E.L.D. Director Nick Fury by HYDRA in Washington, D.C..
Unbeknownst to S.H.I.E.L.D., HYDRA had been infiltrating the organization for decades after their supposed downfall in World War II. Nick Fury had suspicions about the real purpose of Project Insight and secretly hired Algerian mercenary Georges Batroc and his team to hijack the Lemurian Star to recover more information.
Captain America, Black Widow and STRIKE retook the ship and Romanoff downloaded the Project Insight data to a USB drive for Fury. When Fury attempted to access the drive, he was locked out, apparently by himself.
Growing even more suspicious, he asked Alexander Pierce to ask the World Security Council to delay the launch of the Project Insight Helicarriers.